diff --git a/gestioncof/views.py b/gestioncof/views.py
index bd397ed6..9d95d608 100644
--- a/gestioncof/views.py
+++ b/gestioncof/views.py
@@ -1,5 +1,6 @@
 import uuid
 from datetime import timedelta
+from smtplib import SMTPRecipientsRefused
 
 import unicodecsv
 from custommail.shortcuts import send_custom_mail
@@ -445,6 +446,25 @@ def registration_form2(request, login_clipper=None, username=None, fullname=None
     )
 
 
+def notify_new_member(request, member: User):
+    if not member.email:
+        messages.warning(
+            request,
+            "GestioCOF n'a pas d'adresse mail pour {}, ".format(member)
+            + "aucun email de bienvenue n'a été envoyé",
+        )
+    # Try to send a welcome email and report SMTP errors
+    try:
+        send_custom_mail(
+            "welcome", "cof@ens.fr", [member.email], context={"member": member}
+        )
+    except SMTPRecipientsRefused:
+        messages.error(
+            request,
+            "Error lors de l'envoi de l'email de bienvenue à {}".format(member.email),
+        )
+
+
 @buro_required
 def registration(request):
     if request.POST:
@@ -494,12 +514,7 @@ def registration(request):
                 # Enregistrement du profil
                 profile = profile_form.save()
                 if profile.is_cof and not was_cof:
-                    send_custom_mail(
-                        "welcome",
-                        "cof@ens.fr",
-                        [member.email],
-                        context={"member": member},
-                    )
+                    notify_new_member(request, member)
                 # Enregistrement des inscriptions aux événements
                 for form in event_formset:
                     if "status" not in form.cleaned_data: